I got a feeling we'll get commentary and I base that on absolutely nothing.
When you guys talk about commentary I just think of sports commentary... that'd be a great idea. Throughout the concert all you'd get is:
"It looks as if Mangini missed a snare hit there Dom."
"Agreed Howard, he appeared to be put off by the click track. I hope that doesn't affect his confidence as we approach the end of the first set."
"Oh, it appears as if La Brie has sung a swear word during The Test That Stumped Them All. That kind of behaviour has no place in modern rock concerts."
"I'm with you Howard, I just hope he hasn't ruined it for the rest of the band."
"So as Petrucci approaches his pedalboard he prepares himself for the big solo... MY WORD! HE'S DONE IT! DID YOU SEE THAT ALTERNATE PICKING LICK?!"